OD: 1/2"-24" seamless, 26"-60" welded

WT: sch5s,10s,10,40s,std,xs,80s,xxs,40,60,80,160,xxs

Furface: pickled, sand blasting, rolling blast, brighten ,polished ,galvinizing ,vanished

Standard: ansi b16.9, en10253-4, din 2605, gost 17375, jis b2313, mss sp 75

End: bevel end/pe/buttweld